While it works sometimes it not always the case and starting on live for the first few meals will likely be easier.
When you expect to hatch that number of clutches your best option is to breed mice and always have live available to you and euthanize and freeze what it not eaten.
It will be cost and time effective and something you seriously need to consider when breeding snakes.
Next best option find a local mice or rat breeder that can provide what you need as far as live goes.